If the earth suddenly contracts by one-fourth of its present radius, by how much would the day be shortened?

If the earth suddenly contracts to one third of its present radius, how much would the day be shortened ?

If earth suddenly contracts by 1/2 of its present radius by how much would the day be decreased ?

If the earth suddenly contracts to one third of its present size, calculate by how much would the day be shortened ?

Mass remaining constant, if the earth suddenly contracts to one third .of its present radius, the length of the day would be shortened by

Mass remaining constant, if the earth suddenly contracts to one third of its present radius, the length of the day would be shorted by

If earth suddenly contracts to 0.5 times of its present radius, then the length of the day becomes

Imagine that the earth suddenly contracts to one-third of its present radius, without any external torque on it. By what duration the day on the earth will decrease considering the earth to be a perfect solid sphere.

If the earth were to suddenly contract to 1/n th of its present radius, without any change in its mass, then what will be the effect on the duration of the day?

If the earth, were suddenly contracted to (l/n)th of its present radius without change in its mass, then what will be the effect on the duration of the day.